Not with GDSR, but I was able to do it with a custom theme, I believe I will be able to make it into a plugin.

Basically, this is what I did:

Copied and modified some WooCommerce function, for example, there is get_average_rating() and I created get_average_rating_n(), used the core WC function to get the rating average and my function to get the rating per criteria.

Used jQuery raty (better interface), of course I had to copy some woocommerce files into my theme and overrid them.

For novices like me, this isn't enough information to get multi star ratings incorporated into Woocommerce. Have you made this into a plugin yet? Could you provide more details including codes and which files to change?